Re: Incorrect error handling by 'dbLoad' ?

[hill@luke.atdiv.lanl.gov (Jeff Hill)]

> I get the following message from dbLoad:
> ----
> -> dbLoad "../../camacDev/db/camac.database"
> task: 0Xf9a8c0 tShell
> Assertion failed: semStatus==OK, file ../iocLogClient.c, line 448
> ----
> At this point the shell locks up, and all I can do is reboot.
> 
> I found that I was loading a db with the "default.sdrSum" file out of date.
> When I re-created the db with the correct "default.sdrSum" file the problem
> goes away.  I looked at the code for dbLoad(), and I believe it should
> print an error message and return -1.
> 
> I am using EPICS R3.12.2. 

This is a known problem in R3.12.2. The problem occurs when db load 
detects a problem and then attempts to print a message. The log system 
ends up getting called by db load prior to its getting initialized in 
iocInit().

A fix (adding a lazy init to the log system) has been commited
into CVS at APS.

The problem can be fixed by adding the following code to the top of
the function iocLogVPrintf() in $(EPICS)/base/src/libvxWorks/iocLogClient.c

        /*
         * Check for init
         */
        if (!iocLogMutex) {
                status = iocLogInit();
                if (status) {
                        return 0;
                }
        }

Jeff

______________________________________________________________________
Jeffrey O. Hill			Internet	johill@lanl.gov
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